To simplify software development
We define Open Source
The Open Source Definition is the foundation of the modern software ecosystem. We build a world where the freedoms and opportunities of Open Source software can be enjoyed by all.
The leading voice on the policies and principles of open source
Protecting the Open Source ecosystem
We support institutions and individuals working together to create communities of practice in which the healthy open source ecosystem thrives.
Open Source AI Fellowship Announced at UN Open Source Week
The OSI is pleased to announce the launch of the Open Source AI Fellowship at UN Open Source Week.
Engaging on Age Attestation Policy in Brazil
OSI recently submitted comments to Brazil’s National Data Protection Authority (ANPD) regarding its draft guidance on technology providers under the ECA Digital framework, a law to protect children and teenagers in digital environments.
The OSI 2025 Annual Report Is Now Available
The Open Source Initiative's 2025 Annual Report documents a year in which Open Source found itself at the center of major debates around AI, cybersecurity, sustainability, and public policy.
From G7’s Vision on AI Openness to EU’s Tech Sovereignty Package
Members Newsletter – June 2026 If you look at the G7’s Vision on AI Openness or the European Union’s Tech Sovereignty Package, you can see where the OSI has been working to advocate for mindful inclusion …
Support Open Source
As a public charity organization, OSI is supported by donations of corporations and individuals. Thanks to our sponsors that support our vision to be the leading voice on policies and principles of Open Source.
The board of directors
Most of OSI’s board of directors are elected by individual members and Affiliate organizations.